A statement from Great Western Rail has said: "Due to damage to the overhead electric wires between London Paddington and Slough all lines are blocked. Train services running to and from these stations may be cancelled, delayed by up to 60 minutes or revised."

"Disruption is expected until 18:00 28/10.

"Transport for London, South Western Railway, London Underground and Chiltern Railways are conveying passengers via any reasonable route until further notice.